//
//  DataHelper.m
//  IOSBoilerplate
//
//  Copyright (c) 2011 Alberto Gimeno Brieba
//  
//  Permission is hereby granted, free of charge, to any person
//  obtaining a copy of this software and associated documentation
//  files (the "Software"), to deal in the Software without
//  restriction, including without limitation the rights to use,
//  copy, modify, merge, publish, distribute, sublicense, and/or sell
//  copies of the Software, and to permit persons to whom the
//  Software is furnished to do so, subject to the following
//  conditions:
//  
//  The above copyright notice and this permission notice shall be
//  included in all copies or substantial portions of the Software.
//  
//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
//  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
//  OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
//  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
//  HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
//  WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
//  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
//  OTHER DEALINGS IN THE SOFTWARE.
//  

#import "DataHelper.h"

@implementation NSData (helper)

- (NSString*)hexString {
	NSMutableString *str = [NSMutableString stringWithCapacity:64];
	int length = [self length];
	char *bytes = malloc(sizeof(char) * length);
	
	[self getBytes:bytes length:length];
	
	int i = 0;
	
	for (; i < length; i++) {
		[str appendFormat:@"%02.2hhx", bytes[i]];
	}
	free(bytes);
	
	return str;
}

@end
